[Dewie3]

You have some points which are to a point, and in general, true. But you present them in such a ridiculously hyperbolic way that it seems divorced from reality.

Applicative is a pretty standard type class which are often used in introductory resources. It is not likely to be replaced by anything any time soon. If you think that it is a fashion then you should have an idea about what it can/is likely to be replaceable by. So, please do tell.

If anything, Applicative might be less controversial than Monad. I haven't really seen much complaints about the downsides of the usages of Applicative.

"Barbarian" - of course any fairly level-headed explanation of Haskell concepts gets regarded as elitist. It's practically a cliché at this point.

Lazy evaluation - this was pretty much the whole point of the language. A fashion? It permeates the language, being the default evaluation strategy after all. But it is controversial whether it is better than strict (eager?) evaluation. If opinions change about this it might be because someone unearths some way to get more of the benefits of lazy evaluation, and less of the space leaks. And potential discoveries are kind of the point of research languages like this.